Calculate the pH at the equivalence point for the titration of 0.20 M HCl with 0.20 M NH₃ (K_b = 1.8 × 10^-5).

Name: Calculate the pH at the equivalence point for the titration of 0.20 M HCl with 0.20 M NH 3 (K b = 1.8 × 10 -5 ).
Brand: Quizplus
Rating: 4.8 (47 reviews)

Question

Quizplus · Accepted Answer

At the equivalence point, the solution contains NH4Cl, which is the conjugate acid of NH3. The pH is determined by the hydrolysis of NH4+, and using the Kb of NH3, we can find the Ka of NH4+ and calculate the pH, which is approximately 5.12.

Calculate the PH at the Equivalence Point for the Titration